CVE-2026-0529 MEDIUM

CVE-2026-0529: Improper Validation of Array Index in Packetbeat Leading to Overflow Buffers

Vendor Elastic
Product Packetbeat
Weakness CWE-129
Published January 14, 2026
Last update January 14, 2026
View on NVD All CVEs

CVSS base score

6.5/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

Improper Validation of Array Index (CWE-129) in Packetbeat’s MongoDB protocol parser can allow an attacker to cause Overflow Buffers (CAPEC-100) through specially crafted network traffic. This requires an attacker to send a malformed payload to a monitored network interface where MongoDB protocol parsing is enabled.

Key dates

02Disclosure timeline

January 14, 2026 CVE published
January 14, 2026 Record updated